贴现率不确定条件下矿产资源最优开采及资源税研究

Study on the Optimal Path of Mineral Resources Exploitationunder the Uncertainty of Discount Rate

贴现率在研究矿产资源代际优化配置时起着非常重要的作用。首先,在贴现率具有不确定性的条件下,讨论了矿产资源的最优开采问题,给出了矿产资源价格期望变化率;其次研究了贴现率具有不确定性、市场存在垄断时最优资源税设定问题。结果显示,贴现率的不确定性降低了资源价格期望变化率,但从价资源税不受其影响,从量资源税与不确定性程度之间存在反向变动关系。

The discount rate is quite important for determining the inter-generational allocation of a mineral resource.First,the optimal exploitation problem of mineral resources is studied under the uncertainty of discount rate and the expected rate of change of the price is also given;Next,the optimal resource tax is discussed under the monopoly and uncertainty of discount rate.The results show that the uncertainty reduces the expectations of price change path and has no effect on the ad valorem tax.But there exists a reverse relationship between the uncertainty and specific tax.